Custom FLEXSTATION leak test system for air brake actuator used on trucks and buses. Leak tested using the helium hard vacuum method.


A leading manufacturer of air brake components wanted to migrate from their existing bubble leak test system to a helium leak test system for testing their air brake actuators. The system would require tooling for multiple part models. Additional required features include:

  • Ability to inteface hard tooling with parts with loose dimensional tolerancing
  • Simple operator loading process with hard tooling
  • Address permeation issues of the actuator bladder
  • Option for operator or robot loading
  • Option for helium mixing


We engineered a helium hard vacuum leak test system with dual test chamber tooling interfaced to the FLEXSTATION.